OK, large engine not very highly tuned? or smaller engine tuned to the max?

PlatinumGold

Lifer
Aug 11, 2000
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so which is preferrable. a slightly larger engine not quite as highly tuned (5.0 liter v8 putting out 225 hp, 300 ft/lb torque) or a smaller engine tuned much higher (3.5 V6 265 hp)??

I had a mustang lx 5.0 in the day and one of the things i really liked about it was it got surprisingly good gas mileage, much better than my intrigue now.

i also had about 80k miles on it and NO PROBLEMS at all with the engine. i could probably have kept it running over 150k without any serious engine work.

how would the nissan with the 3.5 v6 fare?
 

Shockwave

Banned
Sep 16, 2000
9,059
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Really up to the individual. I'd take a bigger untuned engine. Less hassle as tuning usually means problems down the road. Pushing engines to the limits it hard on them. Besides, if the untuned big block doesnt have enough oomp, get a Ken Belle and HANG ON. :)
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
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It depends on the person's preference.

I'm one of the highly tuned, smaller engine guys. For some reason a 300HP high revving turbocharged 4-cylinder is just more appealing than a 300HP N/A V8.
 

PlatinumGold

Lifer
Aug 11, 2000
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ya, it really is personal preference. i guess it must show that i lean towards the big block, but i can see the appeal of a highly tuned engine.

 

A 5.0 got better mileage than a intrigue eh?
Did you not beat on the mustang or something?
 

Ornery

Lifer
Oct 9, 1999
20,022
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Same as overclocking CPUs. By the time these screwballs get done buying their low MHz CPU, exotic fans and God knows how much tweaking time, they've already invested more than a comparable high MHz CPU would have cost. Same with engines. I'd MUCH rather have an engine that could cruise up to speed, then one that had to scream up to speed. You KNOW which one's going to need more attention and repairs.

Having a tiny screamer to save a little on gasoline is penny wise and dollar foolish. If it's a matter of having a lighter car for better handling, that's all well and good... IF YOU DRIVE ON A RACE COURSE EVERY WEEK!
rolleye.gif
 

MustISO

Lifer
Oct 9, 1999
11,927
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Big engine, big power. The high reving engines are nice in some cars but you can't beat heavy, american muscle.
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
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Originally posted by: Ornery
Same as overclocking CPUs. By the time these screwballs get done buying their low MHz CPU, exotic fans and God knows how much tweaking time, they've already invested more than a comparable high MHz CPU would have cost. Same with engines. I'd MUCH rather have an engine that could cruise up to speed, then one that had to scream up to speed. You KNOW which one's going to need more attention and repairs.

Having a tiny screamer to save a little on gasoline is penny wise and dollar foolish. If it's a matter of having a lighter car for better handling, that's all well and good... IF YOU DRIVE ON A RACE COURSE EVERY WEEK!
rolleye.gif
But he's asking about performance engines.

If we're going to talk about the engines in A-B cars, then the answer is obvious. Nobody in their right mind would pick a sedan with a big honkin' V8 for the daily commute, unless they care about performance.

125 - 180HP is *plenty* for an econobox. It's all about efficiency. Since we can get adequate performance out of a 4 or 6 cylinder engine, larger engines simply are not needed and therefor, wanted.
 

Ornery

Lifer
Oct 9, 1999
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Why? I don't want to drive to work in a buzz box, any more than I'd want to race one!
 

PlatinumGold

Lifer
Aug 11, 2000
23,168
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Originally posted by: Eli
Originally posted by: Ornery
Same as overclocking CPUs. By the time these screwballs get done buying their low MHz CPU, exotic fans and God knows how much tweaking time, they've already invested more than a comparable high MHz CPU would have cost. Same with engines. I'd MUCH rather have an engine that could cruise up to speed, then one that had to scream up to speed. You KNOW which one's going to need more attention and repairs.

Having a tiny screamer to save a little on gasoline is penny wise and dollar foolish. If it's a matter of having a lighter car for better handling, that's all well and good... IF YOU DRIVE ON A RACE COURSE EVERY WEEK!
rolleye.gif
But he's asking about performance engines.

If we're going to talk about the engines in A-B cars, then the answer is obvious. Nobody in their right mind would pick a sedan with a big honkin' V8 for the daily commute, unless they care about performance.

125 - 180HP is *plenty* for an econobox. It's all about efficiency. Since we can get adequate performance out of a 4 or 6 cylinder engine, larger engines simply are not needed and therefor, wanted.

really?? i think a 5.0 V8 detuned to put out 180 hp or so would probably do pretty good on gas.

especially in real world driving situation and not just epa comparisons.
 

Demon-Xanth

Lifer
Feb 15, 2000
20,551
2
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I perfer larger engines because thier torque curves are nice and flat. I hate having to wait for the power to come in.
 

LAUST

Diamond Member
Sep 13, 2000
8,957
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also for the record, here is that "tuning"

Your 5.0 was 8.5:1 compression, the Nissan 3.5 is 10:1

Put some high compression heads/pistons on your 5.0 and it will go up quite abit from 225/300
 

vi edit

Elite Member
Super Moderator
Oct 28, 1999
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I'll just take a middle sized engine that is neither overly tweaked nor detuned.

 

Turkish

Lifer
May 26, 2003
15,547
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smaller engine tuned to the max.

stage 3 upgrade for an audi s4 would be wonderful. of course the new s4s has v8 but oh well :D
 

PlatinumGold

Lifer
Aug 11, 2000
23,168
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Originally posted by: LAUST
also for the record, here is that "tuning"

Your 5.0 was 8.5:1 compression, the Nissan 3.5 is 10:1

Put some high compression heads/pistons on your 5.0 and it will go up quite abit from 225/300

i don't remember but i don't think the 5.0 had 4 valves per cylinder either.

 

Eli

Super Moderator | Elite Member
Oct 9, 1999
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Originally posted by: PlatinumGold
Originally posted by: Eli
Originally posted by: Ornery
Same as overclocking CPUs. By the time these screwballs get done buying their low MHz CPU, exotic fans and God knows how much tweaking time, they've already invested more than a comparable high MHz CPU would have cost. Same with engines. I'd MUCH rather have an engine that could cruise up to speed, then one that had to scream up to speed. You KNOW which one's going to need more attention and repairs.

Having a tiny screamer to save a little on gasoline is penny wise and dollar foolish. If it's a matter of having a lighter car for better handling, that's all well and good... IF YOU DRIVE ON A RACE COURSE EVERY WEEK!
rolleye.gif
But he's asking about performance engines.

If we're going to talk about the engines in A-B cars, then the answer is obvious. Nobody in their right mind would pick a sedan with a big honkin' V8 for the daily commute, unless they care about performance.

125 - 180HP is *plenty* for an econobox. It's all about efficiency. Since we can get adequate performance out of a 4 or 6 cylinder engine, larger engines simply are not needed and therefor, wanted.

really?? i think a 5.0 V8 detuned to put out 180 hp or so would probably do pretty good on gas.

especially in real world driving situation and not just epa comparisons.
It would still get worse gas milage than a 6 or 4cyl in a similar state of tune(% efficiency).

Modern engines are extremely reliable and very efficient. That's why we can get so much power out of such a small package.

Ornery, shush. :p I know your schpiel. There's nothing wrong with the preference of a big huge gas guzzling engine. That's your preference. Nearly everybody in the US that doesen't drive a truck disagrees with you, though. :p It is necessary for you, because it is your preference. But it is not necessary for most A-B drivers. Whether you like to believe it or not, fuel costs are a big part of most families bugets, especially if they have a significant commute. Obviously, since you can still buy them, people still want them, so there is nothing wrong with you wanting one.

I want a WRX STi, but of course that's not everybodies cup of tea.

Besides, you're using zealot-like tactics to get your argument across. 95% of the Hondas and Toyotas on the road can hardly be considered buzzboxes. They're just as smooth and quet as your Crown Vic. :) You know that.

Just like the Honda boys with fart-pipes, you can make your V8 plenty loud too. Although of course it won't sound like a weedeater on steroids........ ;)

I just think everybody here need to step back and realize that we're all different, that's what makes us people. :)
 

LAUST

Diamond Member
Sep 13, 2000
8,957
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Originally posted by: PlatinumGold
Originally posted by: LAUST
also for the record, here is that "tuning"

Your 5.0 was 8.5:1 compression, the Nissan 3.5 is 10:1

Put some high compression heads/pistons on your 5.0 and it will go up quite abit from 225/300

i don't remember but i don't think the 5.0 had 4 valves per cylinder either.
get a set with 2.02" thats plenty :p

 

Ornery

Lifer
Oct 9, 1999
20,022
17
81
"Nearly everybody in the US that doesen't drive a truck disagrees with you, though."

The question is, "... large engine not very highly tuned? or smaller engine tuned to the max? ...which is preferrable."[/i]

For racing OR daily commutes, the big engine loafing along is preferable to constant high RPMs. Even a fair portion of the 50% of US drivers, who don't drive trucks, would prefer the bigger engine, if it weren't for gas mileage. I contend that the money saved for gasoline is a pittance compared to the fatigue and annoyance of 'buzzing around' in the econobox. Not to mention the extra cost of the FWD drive train, suspension and foreign or exotic parts in general. It's not really even a fair comparison!
 

Linux23

Lifer
Apr 9, 2000
11,374
741
126
So it is true? My 2000 Maxima with 3.0L V6 is less fuel efficient than my father's big 4.6L V8 in his Grand Marquis?:confused:

How is this even possible? An engine with 2 extra cylinders can be just as efficient as my V6? I thought I was just imagining this when I complain that my Max is horrible on fuel economy.